Monday, December10, 2018 L-36.com


Marine Weather and Tides
Long Beach, MS

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:41AMSunset 4:57PM Monday December 10, 2018 3:25 AM CST (09:25 UTC) Moonrise 10:23AMMoonset 9:01PM Illumination 8% Phase: Waxing Crescent; Moon at 3 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
GMZ532 Mississippi Sound- 933 Pm Cst Sun Dec 9 2018
.small craft advisory in effect through Monday afternoon...
Tonight..Northwest winds near 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds.
Monday..Northwest winds near 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds.
Monday night..North winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Tuesday..North winds 10 to 15 knots becoming northwest near 5 knots late in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds.
Tuesday night..Northeast winds near 5 knots becoming east in the late evening. Waves 1 foot or less. Dominant period 4 seconds.
Wednesday..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Wednesday night..Southeast winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Chance of showers.
Thursday..South winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Chance of showers in the morning, then showers likely and slight chance of Thunderstorms in the afternoon.
Thursday night..Southwest winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Showers likely and slight chance of Thunderstorms.
Friday..West winds 20 to 25 knots. Waves 3 to 5 feet. Dominant period 4 seconds. Chance of showers.
Friday night..Northwest winds 20 to 25 knots. Waves 3 to 5 feet. Dominant period 4 seconds. Slight chance of showers.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 933 Pm Cst Sun Dec 9 2018
Synopsis..High pressure will build across the central gulf coast region through Tuesday before shifting east of the area on Wednesday. A cold front will sweep across the coastal waters late Thursday and Thursday night.


7 Day Forecast for Marine Location Near Long Beach, MS
   Hourly   EDIT   Help
location: 30.32, -89.14     debug


Area Discussion for - New Orleans/Baton Rouge, LA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 klix 100151
afdlix
area forecast discussion
national weather service new orleans la
751 pm cst Sun dec 9 2018

Sounding discussion
This evening's balloon launch was successful with no problems
encountered. No real major changes to discuss in the vertical
profile when compared to the previous 12 hours, as the area
remains in a dominant cold air advection pattern following a
recent frontal passage. The depth of the colder air has increased
in the past 12 hours from 1.2km to 1.6km above the surface.

Starting to see some slight modification to the thermal profile in
the lower to mid levels in response to the thickening layer of colder
air pushing in. Otherwise, only clouds to speak of are in the low
levels, primarily from 925mb to just above the surface (1,500ft
cloud ceilings at station during launch). Above this layer is
nice and dry all the way surpassing the tropopause. No real
changes expected overnight with continued gusty northwesterly
surface winds and low-level moisture remaining in place in the
form of low clouds. Breezy winds and cloud cover will prevent any
sufficient radiational cooling so temperatures will not dip well
below freezing overnight. Fortunately in such a stable post-
frontal environment, there is no chance of rain through the day
tomorrow. Klg

Prev discussion issued 249 pm cst Sun dec 9 2018
relatively quiet weather expected through the first half of the
week as cold high pressure takes control of the area. Lows
tonight will be 5 to 10 degrees lower than this morning, bottoming
out in the low to mid 30s north and in the upper 30s south. Winds
won't quite calm completely overnight tonight, so expect
widespread wind chill values near or just below freezing. Ambient
temperature could touch freezing in some places north of the
i-10 12 corridor, but with more than 2 freezes having already
occurred, no freeze warning will be issued. Temps should remain
well above hard freeze criteria.

Another somewhat chilly day on tap for tomorrow with highs only
rising into the low to mid 50s. Winds will have calmed a bit
compared to today, and the Sun will come out from its hiding
place as the clouds move out from west to east through the
morning. This should keep it from feeling too chilly.

Low temperatures will plummet after sunset tomorrow as clear
skies and low dewpoints allow for efficient radiative cooling.

Expecting lows in the upper 20s and lower 30s north and in the low
to mid 30s south. The immediate coastal areas of SE la should
stay a bit warmer than that though, bottoming out in the upper 30s
or even lower 40s. Again, no freeze warning is expected for the
north as there have already been 2+ freezes and we're currently
not expecting temps to fall low enough for a hard freeze.

Currently freezing temperatures are forecast to remain generally
north of the interstate corridor. However, with low temps
forecast at 33 degrees for some of the normally colder spots on
the west bank, we can't rule out a couple hours at or below
freezing in those areas. Will need to examine this part of the
forecast closely over the next 2 forecast cycles and may need to
issue a freeze warning to cover the colder southern areas where
freeze warnings are issued for every freeze.

Temperatures will rise into the mid to upper 50s on Tuesday
underneath full sun. As the coldest air shifts eastward, expect
lows to begin moderating Tuesday night bottoming out in the mid
to upper 30s north and the low 40s south. Return flow kicks into
gear on Wednesday ahead of our next frontal system.

Models are in fairly good agreement on timing, though there are
some differences regarding how far south the upper low will dive
and how deep the surface low will be. While these differences
could have some impact on the nuances of the local weather, the
overall pattern is fairly consistent between the euro and gfs, so
have generally gone with a blend of available guidance for the
extended portion of the forecast. This results in highs forecast
to rise into the low to mid 60s most places and cooling only into
the low to mid 50s Wednesday night with a gradual increase in
rain chances through the night.

By Thursday a warm front should be lifting northward through
coastal areas ahead of the approaching cold front. Expect
scattered to numerous showers with isolated thunderstorms by
afternoon. The cold front should sweep through the area Thursday
evening and night, with additional showers and isolated
thunderstorms. Model forecasts indicate a fair amount of
instability and lift along the front, so it's certainly possible
that we'll see a squall line develop along ahead of the front.

However, being 4-5 days out still, there remains significant
uncertainty regarding the exact timing and intensity of any
potential squall line. These are the details that are more
dependent on exact locations and intensities of the surface and
upper lows. Bottom line, it's something we'll be monitoring over
the coming days.

Both GFS and euro indicate wrap around moisture could keep things
cloudy and possibly even still wet through Friday, so will keep
at least a slight chance of showers in the forecast through Friday
afternoon. Saturday currently looks dry with temperatures near or
slightly below normal for this time of year, but you know the
drill... That's subject to change if our late week front slows
down at all.

Aviation
Primarily MVFR to occasional ifr category conditions due to ceilings
will prevail through the remainder of this afternoon and into
tonight at all of the TAF sites. Conditions will improve toVFR
toward daybreak Monday.

Marine
Strong offshore flow will persist into Monday as cold air advection
continues across the coastal waters in the wake of a strong cold
front. As a result, a small craft advisory will remain in effect for
the open gulf waters as well as chandeleur and breton sounds through
Monday. The winds and seas will diminish on Tuesday as high pressure
settles over the region. This high will shift quickly to the east on
Wednesday with southerly flow returning to the coastal waters in
advance of the next storm system that will impact the region
Thursday and Thursday night. In the wake of this next system, small
craft advisory or possibly even gale conditions are expected to
develop across the coastal waters from Thursday night through Friday
night.

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: small craft advisory.

Decision support services (dss) code legend
green = no weather impacts that require action.

Blue = long-fused watch, warning, or advisory in effect or high
visibility event; marginal risk severe or excessive rain.

Yellow = heightened impacts with short-fused watch, warning or
advisory issuances; radar support for slight risk severe
or excessive rain.

Orange = high impacts; enhanced risk severe; nearby tropical events;
hazmat or other large episodes.

Red = full engagement for moderate to high risk of severe and or
excessive rainfall, or direct tropical threats; events of
national significance.

Preliminary point temps pops
Mcb 32 51 29 55 0 0 0 0
btr 34 52 30 56 0 0 0 0
asd 35 53 29 55 0 0 0 0
msy 38 52 36 55 0 0 0 0
gpt 35 52 33 55 0 0 0 0
pql 35 54 31 57 0 0 0 0

Lix watches warnings advisories
La... None.

Gm... Small craft advisory until 6 pm cst Monday for gmz532-536-538-
550-552-555-557-570-572-575-577.

Ms... None.

Gm... Small craft advisory until 6 pm cst Monday for gmz536-538-550-
552-555-557-570-572-575-577.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 10 mi37 min N 12 G 15 41°F 52°F1022.3 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 31 mi43 min 55°F
PTBM6 - 8741003 - Petit Bois Island, MS 34 mi37 min N 12 G 18 39°F 1022.9 hPa
GDXM6 - Grand Bay Reserve, MS 38 mi100 min NNW 11 40°F 1023 hPa37°F
SHBL1 - 8761305 - Shell Beach, LA 42 mi37 min NNW 18 G 21 43°F 57°F1022.8 hPa
KATA1 - Katrina Cut, AL 49 mi85 min NNW 18 42°F 1022 hPa (+0.3)

Wind History for West Pier, Port of Gulfport, MS
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gulfport - Gulfport-Biloxi International Airport, MS7 mi32 minN 1110.00 miOvercast41°F36°F82%1022.1 hPa
Keesler Air Force Base / Biloxi, MS14 mi89 minNNW 13 G 1810.00 miOvercast40°F35°F83%1022.3 hPa

Wind History from GPT (wind in knots)
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
Last 24hrNW12NW10NW10
G17
NW7W8NW11NW15
G20
NW16
G21
NW15
G23
NW13
G23
NW13
G21
N15NW10NW10NW11NW11
G20
NW13
G17
NW11N12
G17
NW8N14NW13N9N11
1 day agoNE8NE9NE7NE7E12E9NE7E11E7NE7E7NW74SW6W5N9NW106NW4NW7W7NW7W7W7
2 days agoE4E3CalmNE4E4E8E7E9E15
G22
E14SE15E15
G19
E11E8E6E5E8E5E6E7NE5NE8NE8NE10

Tide / Current Tables for Gulfport, Gulfport Harbor, Mississippi
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Gulfport
Click for Map
Mon -- 06:42 AM CST     Sunrise
Mon -- 09:15 AM CST     0.01 feet Low Tide
Mon -- 09:22 AM CST     Moonrise
Mon -- 04:56 PM CST     Sunset
Mon -- 08:00 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
21.91.71.51.20.90.50.30.1000.10.10.20.30.50.60.80.91.11.31.51.71.9

Tide / Current Tables for Cat Island (West Point), Mississippi
   EDIT      (on/off)   Help   One Week of Data
Cat Island (West Point)
Click for Map
Mon -- 06:42 AM CST     Sunrise
Mon -- 09:22 AM CST     Moonrise
Mon -- 10:56 AM CST     -0.44 feet Low Tide
Mon -- 04:56 PM CST     Sunset
Mon -- 08:01 PM CST     Moonset
Mon -- 11:40 PM CST     1.67 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.71.61.41.20.90.60.30-0.2-0.3-0.4-0.4-0.4-0.3-0.200.20.40.70.91.21.41.51.6

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Mobile, AL
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.